Contradiction with Psalm 66:18
If I regard iniquity in my heart, the Lord will not hear me: This contradicts Job 27:9 by indicating that there are conditions under which God will not hear prayer, referring to personal iniquity.
Psalm 66:18: If I regard iniquity in my heart, the Lord will not hear [me]:
Contradiction with Micah 3:4
Then shall they cry unto the Lord, but he will not hear them: he will even hide his face from them at that time, as they have behaved themselves ill in their doings. This suggests that God may choose not to hear the prayers of those who have acted wickedly, contrasting with the notion in Job 27:9 of God hearing prayer.
Micah 3:4: Then shall they cry unto the LORD, but he will not hear them: he will even hide his face from them at that time, as they have behaved themselves ill in their doings.
Contradiction with Isaiah 1:15
And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood. This verse contradicts Job 27:9 by stating that God will not listen to prayers if there is guilt or wrongdoing involved.
Isaiah 1:15: And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood. [make...: Heb. multiply prayer] [blood: Heb. bloods]
Contradiction with Proverbs 1:28
Then shall they call upon me, but I will not answer; they shall seek me early, but they shall not find me. This suggests that there are circumstances in which God will not respond to calls or prayers, which contradicts the certainty of God hearing prayer in Job 27:9.
Proverbs 1:28: Then shall they call upon me, but I will not answer; they shall seek me early, but they shall not find me:
Contradiction with Zechariah 7:13
Therefore it is come to pass, that as he cried, and they would not hear; so they cried, and I would not hear, saith the Lord of hosts. This verse describes a situation where God does not hear, countering the assumption in Job 27:9 that God always hears prayer.
Zechariah 7:13: Therefore it is come to pass, [that] as he cried, and they would not hear; so they cried, and I would not hear, saith the LORD of hosts: